Funding for this research was provided by:
Natural Environment Research Council (NE/DO1249X/1)
Bundesministerium für Bildung und Forschung (03G0880A)
Article History
Received: 6 June 2019
Revised: 23 September 2019
Accepted: 24 September 2019
First Online: 13 November 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with animals performed by any of the authors.
: All necessary permits for sampling and observational field studies have been obtained by the authors from the competent authorities and are mentioned in the acknowledgements.
: All data generated or analysed during this study are included in this published article and its supplementary information files.
: The funders had no role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript.